Drug interactions
Clemastine + Methylenedioxymethamphetamine
Severity: Moderate
Clemastine and Methylenedioxymethamphetamine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
MDMA is an illicit stimulant and has no established beneficial or predictable interaction with clemastine. Clemastine's anticholinergic effects may add to tachycardia and hyperthermia risk, while stimulant effects may mask sedation.
What this interaction means in plain words
Clemastine and Methylenedioxymethamphetamine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Mechanism not well established; possible additive anticholinergic and sympathomimetic effects.
What to do
Advise against MDMA use. If exposure occurs, monitor heart rate, temperature and hydration status.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Clemastine
Frequently asked questions
Can I take Clemastine with Methylenedioxymethamphetamine?
MediHelp rates the interaction as moderate. Clemastine and Methylenedioxymethamphetamine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. MDMA is an illicit stimulant and has no established beneficial or predictable interaction with clemastine. Clemastine's anticholinergic effects may add to tachycardia and hyperthermia risk, while stimulant effects may mask sedation.
How serious is the interaction between Clemastine and Methylenedioxymethamphetamine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise against MDMA use. If exposure occurs, monitor heart rate, temperature and hydration status.
What other medicines interact with Clemastine?
MediHelp also lists interactions of Clemastine with, for example, Alfentanil, Benzhydrocodone / acetaminophen, Buprenorphine buccal. The full list is on the Clemastine page.
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